{"data":{"schemaVersion":"realm.temporal-relationships.v1","temporalSemantics":{"validTime":{"granularity":"date","bounds":"inclusive","nullStart":"start date not published in the upstream history row","nullEnd":"open-ended in the upstream history row; not independent proof of present control"},"transactionTime":{"observedAt":"2026-10-13T11:19:05.459773+00:00","meaning":"time the checksum-addressed MDRS artifacts were observed by the PostgreSQL ingestion"},"derivation":{"controllerControlsOperator":"intersection of controller and operator valid-time intervals evidenced through this mine","currentIdentity":"current controller and operator are asserted only by the MDRS Mines snapshot"}},"current":{"mine":{"type":"mine","id":"0500259","name":"O C Coal Mine"},"operator":{"type":"operator","id":"P20089","name":"O C Coal Mine"},"controller":{"type":"controller","id":"C13722","name":"Weaver Robert"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P04590","name":"O C Mining Company"},"object":{"type":"mine","id":"0500259","name":"O C Coal Mine"},"validFrom":"1950-01-01","validTo":"1979-04-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|P04590|1950-01-01|1979-04-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C03780","name":"Weaver Henry L"},"object":{"type":"mine","id":"0500259","name":"O C Coal Mine"},"validFrom":"1950-01-01","validTo":"1979-04-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|C03780|1950-01-01|1979-04-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C03780","name":"Weaver Henry L"},"object":{"type":"operator","id":"P04590","name":"O C Mining Company"},"validFrom":"1950-01-01","validTo":"1979-04-01","current":false,"derived":true,"evidenceMineId":"0500259","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|P04590|1950-01-01|C03780|1950-01-01|63852"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P09416","name":"Macar Mining Corp"},"object":{"type":"mine","id":"0500259","name":"O C Coal Mine"},"validFrom":"1979-04-02","validTo":"1981-08-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|P09416|1979-04-02|1981-08-08"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06090","name":"Williams Max"},"object":{"type":"mine","id":"0500259","name":"O C Coal Mine"},"validFrom":"1979-04-02","validTo":"1981-08-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|C06090|1979-04-02|1981-08-08"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06090","name":"Williams Max"},"object":{"type":"operator","id":"P09416","name":"Macar Mining Corp"},"validFrom":"1979-04-02","validTo":"1981-08-08","current":false,"derived":true,"evidenceMineId":"0500259","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|P09416|1979-04-02|C06090|1979-04-02|70734"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P12482","name":"O C Coal Company"},"object":{"type":"mine","id":"0500259","name":"O C Coal Mine"},"validFrom":"1981-08-09","validTo":"1982-10-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|P12482|1981-08-09|1982-10-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C03780","name":"Weaver Henry L"},"object":{"type":"mine","id":"0500259","name":"O C Coal Mine"},"validFrom":"1981-08-09","validTo":"1982-10-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|C03780|1981-08-09|1982-10-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C03780","name":"Weaver Henry L"},"object":{"type":"operator","id":"P12482","name":"O C Coal Company"},"validFrom":"1981-08-09","validTo":"1982-10-31","current":false,"derived":true,"evidenceMineId":"0500259","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|P12482|1981-08-09|C03780|1981-08-09|63853"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P14066","name":"O C Coal Company"},"object":{"type":"mine","id":"0500259","name":"O C Coal Mine"},"validFrom":"1982-11-01","validTo":"1983-12-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|P14066|1982-11-01|1983-12-27"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10247","name":"Mc Cormick Sylvia"},"object":{"type":"mine","id":"0500259","name":"O C Coal Mine"},"validFrom":"1982-11-01","validTo":"1983-12-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|C10247|1982-11-01|1983-12-27"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10247","name":"Mc Cormick Sylvia"},"object":{"type":"operator","id":"P14066","name":"O C Coal Company"},"validFrom":"1982-11-01","validTo":"1983-12-27","current":false,"derived":true,"evidenceMineId":"0500259","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|P14066|1982-11-01|C10247|1982-11-01|81514"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P15111","name":"H L Weaver"},"object":{"type":"mine","id":"0500259","name":"O C Coal Mine"},"validFrom":"1983-12-28","validTo":"1989-01-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|P15111|1983-12-28|1989-01-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C03780","name":"Weaver Henry L"},"object":{"type":"mine","id":"0500259","name":"O C Coal Mine"},"validFrom":"1983-12-28","validTo":"1989-01-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|C03780|1983-12-28|1989-01-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C03780","name":"Weaver Henry L"},"object":{"type":"operator","id":"P15111","name":"H L Weaver"},"validFrom":"1983-12-28","validTo":"1989-01-31","current":false,"derived":true,"evidenceMineId":"0500259","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|P15111|1983-12-28|C03780|1983-12-28|63854"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20089","name":"O C Coal Mine"},"object":{"type":"mine","id":"0500259","name":"O C Coal Mine"},"validFrom":"1989-02-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|P20089|1989-02-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13722","name":"Weaver Robert"},"object":{"type":"mine","id":"0500259","name":"O C Coal Mine"},"validFrom":"1989-02-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|C13722|1989-02-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13722","name":"Weaver Robert"},"object":{"type":"operator","id":"P20089","name":"O C Coal Mine"},"validFrom":"1989-02-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"0500259","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0500259|P20089|1989-02-01|C13722|1989-02-01|90926"}}],"coverage":{"historyRecords":6,"edgeCount":18,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0500259","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}